لَا تَصْحَبُ الْمَلَائِكَةُ رُفْقَةً فِيهَا كَلْبٌ وَلَا جَرَسٌ
Angels do not accompany a traveling group in which there is a dog or a bell.
Source: مسلم
تَصْحَبُ means “accompany,” رُفْقَةً means a traveling group, and جَرَسٌ means a bell. The report concerns the unseen companionship of angels. This short text does not by itself settle every detailed legal question about objects or modern devices that make sounds.
لَا تَصْحَبُ negates the present-tense verb. الْمَلَائِكَةُ is the subject and رُفْقَةً the object. The attached pronoun in فِيهَا refers back to the traveling group.